ability的形容词形式未能无法

　　I've never been able to work her out.

　　我从未能摸准她的秉性。

　　You need to be able to work as part of a team.

　　你必须能作为团队的`一员去工作。

　　They were able to come and go at will.

　　他们能够来去自由。

　　They were able to achieve a settlement without using military force.

　　他们没有诉诸武力就解决了问题。

　　You need to be able to handle pressure in this job.

　　你要能应付这一工作的压力。